Transmitted Wavefront Error(TWE)是指光线通过光学元件(如透镜、滤光片等)后,波前形状与理想平面波前的偏差。这种偏差会影响光学系统的成像质量,导致图像模糊、畸变或分辨率降低。 导致Transmitted Wavefront Error的可能原因 基材平整度:光学元件的基材(如玻璃或熔融石英)表面平整度不佳,会导致光线在通过时产生波前畸...
To assist in determinng and tracking the transmitted wavefront error of the Canada-France-Hawaii Telescope filter s tock, a method for determining the wavefront error, in transmission, of the filters using a white-light source has been investigated. The method uses the ef softwar from Laplacian...
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which allows measuring the transmitted wavefront error of the silicon entrance windows of the wavefront sensor cryostat.The technique can be readily applied to quantitative phase measurements in the near-infrared regime.Moreover,by employing a slightly off-axis optical setup,the proposed method can ...
Path loss is a dilution of the transmitted energy as the radiated wavefront expands during its travel from transmitter antenna to receiver antenna. For example, when communicating from Earth to a geosynchronous satellite (at an altitude of 37,786 km) at S-band (∼2 GHz, λ≈ 0.15 m), ...
The weakening of the ultrasonic wavefront and the breakup of the ultrasonic signals due to these three effects are major sources of error [42]. The resonant and thermal characteristics of some particles can also lead to significant attenuation. To minimize errors that result from changes in fluid...
A ray of unpolarised light is incident on a glass plate at the polarizing angle if incident 57^@. Now,
In large-scale high-power laser devices, the mid-spatial-frequency(MSF) error of the transmitted wavefront of the large-aperture spherical lens has a direct impact on the energy scattering of the high power laser. This paper proposes a technology about correction of MSF error of large-aperture...
In this paper, we present the development of a quantitative near-infraredpoint diffraction interferometric characterization technique, which allows measuring the transmitted wavefront error of the silicon entrance windows of the wavefront sensor cryostat. The technique can be readily applied to quantitative...
Aikens,D. M.Derivation of preliminary specifications for transmitted wavefront and surface roughness for large optics, Proc[].Proceedings of SPIE the International Society for Optical Engineering.1995Dave Aikens,Andre Roussel,Michael Bray.Derivation of preliminary specifications for transmitted wavefront ...